i have two great-grandfathers, one from my mothers side. my fathers grandfather is now97 years old and lives. in toufen although his eyesight and hearing is poor, his mind is still sharp and clear.
he always asks each visitor many pertinent questions and shares his ideas and opinions. he often talks with a loud voice and with much enthusiasm and energy. he can remember all he can remember all the names of his relatives and friends.
in his youth he was trained to be a medical doctor; through his life he was an avid reader.